Arm support for hand tool



FIG. 1 is a front elevational view of an arm support for hand tool embodying the new design;

FIG. 2 is a left end elevational view thereof;

FIG. 3 is a right end elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for an arm support for hand tool, as shown and described. 